Radeon HD 6450 (OEM) vs Radeon R9 290

Intro

Compare that to the Radeon R9 290, which has a core clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 512-bit memory bus, and uses a 28 nm design. It is comprised of 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 290		9876 points
Radeon HD 6450 (OEM)		340 points
	Difference: 9536 (2805%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon R9 290		300 Watts
	Difference: 269 Watts (868%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 290 should be 2400% faster than the Radeon HD 6450 (OEM) overall, because of its greater bandwidth. (explain)

Radeon R9 290		320000 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 307200 (2400%)

Texel Rate

The Radeon R9 290 should be much (approximately 2460%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon R9 290		128000 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 123000 (2460%)

Pixel Rate

The Radeon R9 290 is much (more or less 1948%) more effective at anti-aliasing than the Radeon HD 6450 (OEM), and capable of handling higher resolutions while still performing well. (explain)

Radeon R9 290		51200 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 48700 (1948%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.